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Rosewill THOR NAS - Full Tower Workstation Case | Server Chassis | Supports up to 11 3.5" HDD and 13 2.5" SSD | E-ATX Compatible | 1x 140mm PWM Fan | USB 3.2 Type-C | Ideal for AI Servers, DIY NAS
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Rosewill THOR NAS - Full Tower Workstation Case | Server Chassis | Supports up to 11 3.5" HDD and 13 2.5" SSD | E-ATX Compatible | 1x 140mm PWM Fan | USB 3.2 Type-C | Ideal for AI Servers, DIY NAS

+ $20 off w/ promo code FPSF875, limited offer

  • Motherboard Compatibility: 12" x 13" E-ATX; 12" x 9.6" ATX, 11.2" x 8.2" Mini-ATX and below
  • Power Supply: Supports ATX power supply
  • Internal 3.5" Drive Bays: 11
  • Expansion Slots: 10
  • Model #: THOR NAS
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  • $169.99 
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PSU for Y700 450W Power Supply PC7033 41A9722 36200512 PC7033-EL4G PC7033-EL2G
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  • $177.99 
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DIGITUS Industrial Power Supply 48V DC, 240W AC-DC, Metal case, DIN Rail mountable
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  • $632.99 
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for FSP 2U 600W Power Supply FSP600-702UH FSP600-702UC FSP700-802UK Tested
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  • $324.99 
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PWS-561-1H for 560W 1U Multi-Output Power Supply (PWS-561-1H) 1x 24 Pin ATX (Motherboard)
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  • $370.99 
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PSU for AIO 14Pin 330W Switching Power Supply PA-3331-1 820389-001 820787-001
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  • $261.99 
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FSP500-60WS1 / Industrial Level of Switching Power Supply 500W
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  • $382.99 
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PSU for IEI Flex Small 1U 16Pin 150W Switching Power Supply ACE-816AP-L
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  • $366.99 
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PSU Board for iMac 27"" AIO A1312 310W Power Supply PA-2311-02A ADP-310AF
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  • $299.99 
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39Y7228 FSA021 460W Hot Swap Redundant Power Supply for System X 4E 658759180742
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  • $448.99 
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RSP-500-48 Mean Well Switching Power Supply MeanWell RSP-500-48
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PSU for 500W Power Supply DPS-500AB-20A 746177-002 849655-003 PS-8501-2 849655-001
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  • $210.99 
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Almost PSU for X345 350W Switching Power Supply 49P2033 49P2116 DPS-350MB-3 A
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  • $251.99 
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PSU for 80plus Silver Flex Pos Small 1U 250W Switching Power Supply GW-FLX250M
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  • $376.99 
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Switching Power Supply for 700-014188-0000 SP50L09191 750W Fully Tested
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  • $251.99 
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DPS-750AB-36 A for Z4 G4 Workstation Power Supply 851382-001 750W MAX
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  • $386.99 
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ATSN-7001044-Y000 1000-Watts Hot Swap Redundant Switching Power Supply
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  • $424.99 
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for DL380G3 251942-002 274401-001 DD-3401-1C1 400W Power Supply
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  • $220.99 
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for DL380G3 251942-002 274401-001 DD-3401-1C1 400W Power supply
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  • $214.99 
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PSU for Flex Small 1U 400W Switching Power Supply DPS-400AB-12 A DPS-400AB-12 G
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  • $250.99 
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PSU for AIO ITX Flex NAS Small 1U 220W Switching Power Supply JCI-2211P-1M2
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  • $173.99 
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PSU for AIO ITX Flex NAS Small 1U 300W Switching Power Supply JCI-3011P-1M2
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  • $219.99 
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PSU for Rosoa AIO ITX Small 1U Rated 150W Peak 250W Switching Power Supply SO-250ITX
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  • $175.99 
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for 280 400 600 800 G3 G4 Power Supply 250W D16-250P1A L08417-002
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for 280 400 600 800 G3 G4 Power Supply 250W D16-250P1A L08417-002

Limited time offer, ends 05/23

  • Model #: KB0BYXXFZYC
PSU for DVR NVR SATAx8 250W Switching Power Supply ATX-250W HZ-252 SL-8250SFX
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  • $313.99 
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New 6EP1334-3BA10 Switching Power Supply 6EP1 334-3BA10 1PCS for delivery
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  • $371.99 
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Original 98Y2218 44W8229 45W8841 for Fit for IBM V3500 V3700 V500 Server Power Supply
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  • $422.99 
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for 300W Desktop Power Supply 507895-002 575437-001 598758-001 PC7036
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  • $180.99 
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PSU for Rosor IDC 1U 350W Switching Power Supply SO-350U S0-350U
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  • $236.99 
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PSU for 80plus Silver Flex Small 1U 350W Switching Power Supply DPS-350AB-12B
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  • $240.99 
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YNCW3 750W DPS-750B D750E-S3 Server DC Power Supply 750W #XH 819954855686
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  • $459.99 
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for PowerVault MD3200 Power Supply 600W H600E-S0 NFCG1 GV5NH
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  • $234.99 
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for DL580G5 800/1200W 437572-B21 PC Power Supply 441830-001 438202-001 DPS-1200FB A
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  • $184.99 
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for DL580G5 800/1200W 437572-B21 PC Power Supply 441830-001 438202-001 DPS-1200FB A
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  • $177.99 
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PSU for X326M X325 411W Power Supply API3FS10 74P4349 74P4348 39Y7167 39Y7166
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  • $339.99 
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PSU for Acer M6300 Q87 Q85 G3-605 12Pin 500W Power Supply FSP500-50AAGA FSP500-50AGPAA
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  • $251.99 
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PSU for 1850 550W Power Supply AA23300 PS-3521-1D X0551 JD090 UG634
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  • $361.99 
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Juniper Ex4300 100w Ac Power Supply With Front To Back Airflow. Not Eligible For
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  • $321.99 
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Original 190W Power Supply DPS-200PB-185 B for Fit for Delta 100-240V 3.5A 47-63HZ
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  • $246.99 
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PSU for 80plus Bronze Flex 1U 250W Power Supply SSP-250SUB SS-200SU
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  • $312.99 
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PSU for 80plus Bronze Flex NAS Small 1U 300W Power Supply ENP-7030B
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  • $266.99 
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PSU for Enhance 80plus Bronze Flex NAS Small 1U 300W Power Supply ENP-7030B
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  • $233.99 
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PSU for FSP 80plus Bronze ATX -5V 300W Switching Power Supply FSP300-70PFL FSP250-70PFL
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  • $343.99 
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for HK350-12PP Suitable for 5060 Qi Tian M4650 TS150 250 10-pin Power Supply
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for PWS-201-1H 200W SP262-1S SP261-1S SP202-1 1U Power Supply
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  • $192.99 
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PS for Thinkserver TS150 M900 250 Watt Power Supply SP50A36171 54Y8934
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PS for Thinkserver TS150 M900 250 Watt Power Supply SP50A36171 54Y8934

Limited time offer, ends 05/23

  • Model #: KB0CGPNVQRX
PSU for Rosor 1U Rated 200W Peak 300W Switching Power Supply SO-320U
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  • $196.99 
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PSU Board for PICO-Box DC-ATX DC 16-60V Support 48V 24PIN 320W Power Supply X7-ATX-320
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  • $310.99 
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100% Test for Power Supply for V440 300-1851 300-1501 DPS-680CB A 680W Work Good
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  • $266.99 
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PSU for AIO POS Flex Small 1U 150W Switching Power Supply ST-150FUB-05E
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  • $266.99 
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PSU for Flex NAS Small 1U -5V S3 K39 250W Switching Power Supply LMJD-2500
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  • $310.99 
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Server Chassis Guide: Build Your Ideal IT Infrastructure

The server chassis is the backbone of your server setup, housing critical components and ensuring optimal performance. Choose the right chassis to optimize space, airflow, and expandability. Let's explore your options:

Server Chassis by Form Factor

  • Tower Chassis: Versatile and expandable, perfect for growing businesses requiring flexibility and increased storage capacity.
    • Sizes: Full Tower (maximum space), Mid Tower (balanced), Mini Tower (space-saving)
  • Rackmount Chassis: Designed for high-density data centers and server rooms, maximizing space utilization and simplifying cable management.
    • Sizes: Measured in rack units (U), typically 1U, 2U, or 4U
  • Blade Chassis: Ultra-compact and modular, ideal for large-scale deployments where high compute density and shared infrastructure are priorities.

Server Chassis by Brand: Top Manufacturers

  • Rosewill: Budget-friendly, reliable chassis with a focus on rackmount solutions for small to medium businesses.
  • Supermicro: High-performance, enterprise-grade chassis known for their build quality, advanced features, and customization options.
  • Chenbro: Durable and versatile chassis offering a range of form factors and configurations for various IT environments.
  • iStarUSA Group: Specializes in storage-dense chassis with hot-swappable bays and robust cooling solutions.

Server Chassis Buying Guide: Key Technical Considerations

  1. Form Factor: Choose based on your deployment environment, space constraints, and future growth plans.
  2. Size (U) (for rackmounts): Select the appropriate height to fit your rack and server configuration.
  3. Expandability: Consider available drive bays, PCIe slots, and memory capacity for future upgrades.
  4. Cooling: Ensure adequate airflow and fan options to maintain optimal operating temperatures for your components.
  5. Power Supply: Choose a power supply with sufficient wattage and redundancy options to meet your server's demands.
  6. Features: Look for features like hot-swappable drives, redundant power supplies, tool-less access, and cable management options to simplify maintenance and improve reliability.
  7. Brand Reputation: Opt for reputable manufacturers known for quality, reliability, and support to minimize downtime and ensure long-term performance.

Pro Tips for IT Professionals:

  • Thoroughly assess your specific workload and hardware requirements before selecting a chassis.
  • Pay close attention to compatibility with your motherboard, expansion cards, and other components.
  • Factor in future scalability needs when choosing a chassis to avoid costly upgrades down the line.
  • Consult with IT experts or refer to detailed product specifications to make an informed decision.

Bestselling Server Chassis Reviews:

Anonymous
2/18/2026 3:21:35 PM
Great budget 2U chassis

“ Really great 2U chassis for the price. ”

Rosewill 2U Server Chassis Rackmount Case | 4 x 3.5" HDD Bays | Micro-ATX Compatible | 3 x 80mm PWM Fans | 2 x USB 3.0 | Silver/Black - RSV-Z2600U
Anonymous
10/17/2025 7:22:05 AM
Sturdy Case

“ Supermicro makes great and sturdy cases. ”

Supermicro Case CSE-731I-404B Mini-tower chassis 2x5.25" External HDD Drive Bays and 4x 3.5" Internal HDD Drive Bays 400W
George B.
9/11/2025 7:31:14 AM
Amazing 2U case.

“ I usually build in 4U cases, but this was a very well designed 2U case making the build process very easy. ”

Rosewill 2U Server Chassis Rackmount Case | 4 x 3.5"/2.5" HDD, 1 x 5.25" Device | Micro-ATX Compatible | 2 x 80mm PWM Fans | 2 x USB 3.0 | Silver/Black - RSV-Z2700U
tim1724
5/20/2025 7:23:19 PM
Well built, flexible for wide array of applications

“ My main reason for choosing it was that I needed a cheap GPU server using consumer grade cards (Geforce RTX 3090) which don't fit in a typical server chassis. ”

SUPERMICRO SuperChassis CSE-745BAC-R1K23B 4U Tower Server Chassis
Michael M.
4/11/2025 4:03:16 AM
Good case, especially when on sale - RSV-L4000U

“ There's not a lot of info from Rosewill about this case and what you can fit in it. ”

Rosewill 4U Server Chassis Rackmount Case | 8 x 3.5" HDD Bays + 3 x 5.25" Devices | E-ATX Compatible | 5 x Front 120mm Fans | 2 x Rear 80mm Fans | 2 x USB 3.0 | Front Panel Lock | Silver/Black - RSV-L4000U
Anonymous
4/6/2025 12:51:34 PM
Great chasis for ATX rack mounted server/pc

“ A large PC style ATX PSU will likely extend over the CPU socket (I was using a 1600w seasonic); meaning you will have to use an AIO/water cooling setup for the CPU, or at a minimum a 2u height cooler (this is on an ATX MB). ”

Rosewill 4U Server Chassis | Supports up to 4 GPUs | 8 Hot-Swap 3.5"/2.5" SATA/SAS up to 12Gbps | E-ATX Compatible | 3 x 12038 Hot-Swap Fans | 2 x Rear 8038 Fans | USB 3.2 Type-C | With Rail Kit | Ideal for AI Servers
Benjamin A.
9/11/2024 6:05:59 PM
Pretty solid DIY NAS case

“ Cheaper than SuperMicro chassis ”

SilverStone Technology CS351 5-Bay SAS-12G / SATA-6G hot-swappable high Performance NAS Chassis, SST-CS351
Robert W.
5/23/2024 12:11:57 AM
Great case for my first homelab.

“ This was my first build with a server chassis and i gotta say, aside from the not having a manual in the box if was all simple and self explanatory if youve built cases before. ”

iStarUSA D406-DE8BK Black 4U Rackmount Compact Stylish Server Case